Answer found! Graphic Photos of Necropsy

[ChickenCanoe]

Thanks for posting this.
In years of butching birds on old farmsteads I've only had two instances. Both were from the same flock of Cornish Cross. One had a piece of glass buried in the gizzard wall and the other had a nail imbedded. Luckily I was butchering anyway so no harm done.

This I found in the proventriculus of my friend's peahen, ruptured of course, though that was not the cause of death.
View attachment 1551293

Here it is next to a quarter for size comparison:
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This was the cause of death:
View attachment 1551311

What is that, a piece of plastic poultry netting?

So sorry for your loss.
I assumed the crook in the neck was a result of the nail being lodged?

I keep finding glass throughout my yard. Broken pieces of glass. I think every time it rains, more pieces come to the surface.

The back of my small property was apparently used as a dump 100+ years ago. I take a 5 gallon bucket out a couple times a year to pick up the glass and metal the chickens dig up. So far none of the birds have eaten any.
I bought a high end metal detector when I moved here thinking I may find something valuable on this homestead dating to the 1840s. What a waste of time and money. The entire property has all sorts of metal underground. The metal detector beeps and screams at me constantly. Everything from plow blades to old barb wire rolls to axe heads, et. al. This place is just a mile up the road from the old place where I grew up and the guts of that main house is an old log cabin dating to 1843. It is a bar and restaurant now.

 

[casportpony]

What is that, a piece of plastic poultry netting?

Some sort of fencing I think.

 

[casportpony]

Post #18 updated with new pictures:
https://www.backyardchickens.com/th...otos-of-necropsy.1275221/page-2#post-20511756

 

[wild chick]

@casportpony, is all that black tissue from metal toxicity? or just the stress of the object that can't be digested or ejected? Half the liver and surrounding tissues in my chicken were black, as well as the tissue clinging to the nail. I know the liver filters toxins and that's why I was thinking it was black.

 

[MissChick@dee]

This I found in the proventriculus of my friend's peahen, ruptured of course, though that was not the cause of death.
View attachment 1551293

Here it is next to a quarter for size comparison:
View attachment 1551294

This was the cause of death:
View attachment 1551311

This was the the growth on the gizzard:
View attachment 1551526

This needle was inside the growth.
View attachment 1551523 View attachment 1551525

Fascinating. Amazing how the body encapsulated the needle (growth) from the gizzard. The things chickens will eat. Thanks for sharing.